Bad weather might push SpaceX's historic first flight of NASA astronauts to its backup launch date on May 30.
Forecasts show just a 40% chance that rain and clouds won't make conditions unsafe for the scheduled launch on Wednesday .
Rockets can trigger lightning strikes, winds can throw launches off course, and powerful waves can make evacuations dangerous.
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Clouds and rain could thwart the historic first launch of NASA astronauts in a SpaceX spacecraft on Wednesday.
The mission, called Demo-2, will fly seasoned NASA astronauts Bob...Read more ...